So the last poll suggested a national environment far more Democratic than expected. This poll suggests one more about in line with what was expected. It could have been worse at least. Basically suggests the Senate is still Toss-up/Tilt R. As mentioned, Iowa was 12 points to the right of the nation in 2020, which would make this squarely a neutral year.
Cope. Grassley is a flawed incumbent at this point and likely will underperform, plus IA has the most D favorable early vote. This is looking like an actual tidal wave.
He's an institution running against a sexual harraser, this could mean anything.